node: fix comments and strings

Clarify comments re invoking bootstrap_node.js.
Fix filename to bootstrap_node.js per #5103.
Fix tests `node.js` -> `bootstrap_node.js`
Fix comment on why we check the loop again before exiting.
`context-inl.h` -> `env-inl.h`

Author: joshgav

src/env.h

@@ -13,12 +13,12 @@
 #include <stdint.h>
 
 // Caveat emptor: we're going slightly crazy with macros here but the end
-// hopefully justifies the means. We have a lot of per-context properties
+// hopefully justifies the means. We have a lot of per-isolate properties
 // and adding and maintaining their getters and setters by hand would be
 // a nightmare so let's make the preprocessor generate them for us.
 //
 // Make sure that any macros defined here are undefined again at the bottom
-// of context-inl.h. The exceptions are NODE_CONTEXT_EMBEDDER_DATA_INDEX
+// of env-inl.h. The exceptions are NODE_CONTEXT_EMBEDDER_DATA_INDEX
 // and NODE_ISOLATE_SLOT, they may have been defined externally.
 namespace node {
 

src/node.cc

@@ -3265,21 +3265,27 @@ void LoadEnvironment(Environment* env) {
   env->isolate()->SetFatalErrorHandler(node::OnFatalError);
   env->isolate()->AddMessageListener(OnMessage);
 
-  // Compile, execute the src/node.js file. (Which was included as static C
-  // string in node_natives.h. 'native_node' is the string containing that
-  // source code.)
-
-  // The node.js file returns a function 'f'
   atexit(AtExit);
 
+  // Compile ./lib/internal/bootstrap_node.js as `Local<Function> f`.
+  // We call `f` at the end of this block with the 'process' variable
+  // built up with all our bindings. Inside the script we take care of
+  // assigning things to their places.
+
+  // We start the process this way in order to be more modular. Developers
+  // who do not like how bootrap_node.js sets up the module system but do like
+  // Node's I/O bindings may want to replace 'f' with their own function.
+
   TryCatch try_catch(env->isolate());
 
   // Disable verbose mode to stop FatalException() handler from trying
   // to handle the exception. Errors this early in the start-up phase
   // are not safe to ignore.
   try_catch.SetVerbose(false);
 
-  Local<String> script_name = FIXED_ONE_BYTE_STRING(env->isolate(), "node.js");
+  Local<String> script_name = FIXED_ONE_BYTE_STRING(env->isolate(),
+    "bootstrap_node.js");
+
   Local<Value> f_value = ExecuteString(env, MainSource(env), script_name);
   if (try_catch.HasCaught())  {
     ReportException(env, try_catch);
@@ -3288,14 +3294,6 @@ void LoadEnvironment(Environment* env) {
   CHECK(f_value->IsFunction());
   Local<Function> f = Local<Function>::Cast(f_value);
 
-  // Now we call 'f' with the 'process' variable that we've built up with
-  // all our bindings. Inside node.js we'll take care of assigning things to
-  // their places.
-
-  // We start the process this way in order to be more modular. Developers
-  // who do not like how 'src/node.js' setups the module system but do like
-  // Node's I/O bindings may want to replace 'f' with their own function.
-
   // Add a reference to the global object
   Local<Object> global = env->context()->Global();
 
@@ -4301,8 +4299,8 @@ static void StartNodeInstance(void* arg) {
           v8::platform::PumpMessageLoop(default_platform, isolate);
           EmitBeforeExit(env);
 
-          // Emit `beforeExit` if the loop became alive either after emitting
-          // event, or after running some callbacks.
+          // Check if the loop became alive either after emitting
+          // `beforeExit` event, or after running some callbacks.
           more = uv_loop_alive(env->event_loop());
           if (uv_run(env->event_loop(), UV_RUN_NOWAIT) != 0)
             more = true;

test/debugger/test-debugger-client.js

@@ -105,7 +105,7 @@ addTest(function(client, done) {
     var foundMainScript = false;
     for (var k in client.scripts) {
       var script = client.scripts[k];
-      if (script && script.name === 'node.js') {
+      if (script && script.name === 'bootstrap_node.js') {
         foundMainScript = true;
         break;
       }

test/message/core_line_numbers.out

@@ -11,5 +11,5 @@ RangeError: Invalid input
     at Module.load (module.js:*:*)
     at Function.Module._load (module.js:*:*)
     at Function.Module.runMain (module.js:*:*)
-    at startup (node.js:*:*)
-    at node.js:*:*
+    at startup (bootstrap_node.js:*:*)
+    at bootstrap_node.js:*:*

test/message/error_exit.out

@@ -10,5 +10,5 @@ AssertionError: 1 == 2
     at Module.load (module.js:*:*)
     at Function.Module._load (module.js:*:*)
     at Function.Module.runMain (module.js:*:*)
-    at startup (node.js:*:*)
-    at node.js:*:*
+    at startup (bootstrap_node.js:*:*)
+    at bootstrap_node.js:*:*

test/message/eval_messages.out

@@ -6,7 +6,7 @@ SyntaxError: Strict mode code may not include a with statement
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([eval]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 42
@@ -19,7 +19,7 @@ Error: hello
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([eval]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 [eval]:1
@@ -30,7 +30,7 @@ Error: hello
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([eval]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 100
@@ -42,7 +42,7 @@ ReferenceError: y is not defined
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([eval]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 [eval]:1

test/message/nexttick_throw.out

@@ -7,5 +7,5 @@ ReferenceError: undefined_reference_error_maker is not defined
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
     at Function.Module.runMain (module.js:*:*)
-    at startup (node.js:*:*)
-    at node.js:*:*
+    at startup (bootstrap_node.js:*:*)
+    at bootstrap_node.js:*:*

test/message/stdin_messages.out

@@ -7,7 +7,7 @@ SyntaxError: Strict mode code may not include a with statement
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([stdin]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 42
@@ -21,7 +21,7 @@ Error: hello
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([stdin]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 
@@ -33,7 +33,7 @@ Error: hello
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([stdin]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 100
@@ -46,7 +46,7 @@ ReferenceError: y is not defined
     at Object.exports.runInThisContext (vm.js:*)
     at Object.<anonymous> ([stdin]-wrapper:*:*)
     at Module._compile (module.js:*:*)
-    at node.js:*:*
+    at bootstrap_node.js:*:*
     at _combinedTickCallback (internal/process/next_tick.js:*:*)
     at process._tickCallback (internal/process/next_tick.js:*:*)
 

test/message/undefined_reference_in_new_context.out

@@ -13,4 +13,4 @@ ReferenceError: foo is not defined
     at Module.load (module.js:*)
     at Function.Module._load (module.js:*:*)
     at Function.Module.runMain (module.js:*:*)
-    at startup (node.js:*:*)
+    at startup (bootstrap_node.js:*:*)

test/message/vm_display_runtime_error.out

@@ -12,5 +12,5 @@ Error: boo!
     at Module.load (module.js:*)
     at Function.Module._load (module.js:*)
     at Function.Module.runMain (module.js:*)
-    at startup (node.js:*)
-    at node.js:*
+    at startup (bootstrap_node.js:*)
+    at bootstrap_node.js:*